This year’s American Nuclear Society Annual Meeting was filled with great content, some of which was covered in the August issue of Nuclear News (beginning on p. 22). One of the meeting’s executive sessions, “Bringing Nuclear History Forward,” focused on advanced reactor (AR) history and was well attended. The United States—along with many countries around the world—is turning to nuclear to combat climate change. Part of this is funding new and innovative companies to create first-of-a-kind nuclear reactors to provide abundant and clean power. Looking at the current designs of interest to the community brings up interesting comparisons to the test and experimental reactors of the past. Test reactors like the Experimental Breeder Reactor-II (EBR-II), the Fast Flux Test Facility (FFTF), Peach Bottom, Fort St. Vrain, Germany’s AVR, and others now are more important than ever in providing insight, data, and operational lessons learned to develop the next generation of reactors.

The Nuclear Regulatory Commission announced last Friday the issuance of 2022 assessment letters to operators of the nation’s commercial nuclear reactors, noting that of the 93 units in the agency’s Reactor Oversight Process, 87 “reached the highest performance category in safety and security,” known as Licensee Response.

Xcel Energy subsidiary Northern States Power Company has submitted to the Nuclear Regulatory Commission a subsequent license renewal application for the utility’s Monticello reactor. Notice of the agency’s receipt of the application was published in the January 31 Federal Register.

Southern Nuclear, operator of the two-unit Hatch nuclear plant, announced yesterday that it will seek subsequent license renewals (SLR) for both reactors.

In a major change to its subsequent license renewal process, the Nuclear Regulatory Commission last week ruled that reviews of SLR applications must rely on a more extensive environmental analysis than that provided by the agency’s Generic Environmental Impact Statement for License Renewal of Nuclear Plants (GEIS). According to the ruling, the GEIS, properly understood, does not cover the SLR period.

Constellation, formerly Exelon Generation, owner and operator of the nation’s largest nuclear reactor fleet, announced this morning the completion of its separation from Exelon Corporation and its launch as a stand-alone, publicly traded company. Headquartered in Baltimore, Md., the new company began trading today on the Nasdaq Global Select Market under the symbol “CEG.”

Exelon announced last February that it had begun the effort to separate its utility businesses from its competitive power generation and customer-facing energy businesses.

The Nuclear Regulatory Commission has approved the indirect transfer of the licenses for 23 operating and five decommissioning reactors, as well as their associated independent spent fuel storage installations, from Exelon Corporation to a new company as part of a corporate restructuring, the agency announced yesterday.

Florida Power and Light Company is seeking to keep its St. Lucie nuclear plant in operation into the 2060s, and so far, so good: In early August, the utility submitted to the Nuclear Regulatory Commission a subsequent license renewal application for the facility’s two units, and last Friday, the NRC accepted the application for review.

The 2021 Pennsylvania Climate Action Plan recommends 18 “strategies” for realizing Gov. Tom Wolf’s goal of an 80 percent reduction in the state’s greenhouse gas emissions (from 2005 levels) by 2050. Two of the strategies are for the electricity-generation sector: (1) maintain operation at Pennsylvania’s nuclear power plants through at least 2050, and (2) achieve a 100 percent carbon-free grid by 2050.

In addition to focusing on electric power generation, the plan includes strategies for other major carbon-emitting sectors in the fossil fuel–heavy state, including transportation, industry, agriculture, and residential and commercial buildings. For each strategy, emission reductions, costs, and benefits in jobs and economic growth are quantified and health and social benefits analyzed.

Florida Power and Light Company, a subsidiary of NextEra Energy, has filed a subsequent license renewal application with the Nuclear Regulatory Commission for the two-unit St. Lucie nuclear power plant, seeking a second 20-year renewal of the reactors’ operating licenses.

An atomic safety and licensing board has been established to address a hearing request filed on behalf of an antinuclear group regarding the subsequent license renewal (SLR) application for NextEra Energy’s Point Beach reactors, located near Two Rivers, Wis. The Nuclear Regulatory Commission published notice of the panel’s formation in the April 2 Federal Register.

The Nuclear Regulatory Commission has accepted for review NextEra Energy’s subsequent license renewal (SLR) application for its Point Beach reactors, making them the fifth and sixth units currently under consideration for a second 20-year license renewal. (SLR applications for Dominion Energy’s North Anna-1 and -2 and Surry-1 and -2 are also being reviewed, while SLR approval has been granted for Exelon’s Peach Bottom and NextEra’s Turkey Point units.)

NextEra submitted the SLR application in November of last year—the first such application involving a Midwestern nuclear plant. The NRC approved the plant’s initial license renewal in December 2005, allowing Unit 1 to operate through October 5, 2030, and Unit 2 through March 8, 2033.

Graph: EIA

Of the 10 U.S. power plants that generated the most electricity in 2019, nine were nuclear plants, a recent report from the U.S. Energy Information Administration states.

These 10 facilities produced a combined 230 million megawatt hours of electricity last year, accounting for 5.6 percent of all electricity generation in the United States, according to the report. The report also notes a shift in the makeup of the top plants over the past 10 years, from a mix of nuclear and coal-fired generators in 2010 to nearly all nuclear in 2019.

Coal’s share of U.S. electricity generation dropped from 45 percent in 2010 to 23 percent in 2019, the reports says. Stricter air emission standards and decreased cost competitiveness relative to other generators are given as the key reasons for coal’s decade of decline.

Exelon Generation’s Peach Bottom-2 and -3, located in Delta, Pa., have joined Florida Power & Light Company’s Turkey Point-3 and -4 as the only U.S. nuclear reactors licensed to operate for a total of 80 years.

On March 5, the Nuclear Regulatory Commission issued subsequent license renewals to Exelon for the Peach Bottom boiling water reactors, with expiration dates of August 8, 2053, for Unit 2, and July 2, 2054, for Unit 3. The FPL units received their first--in--the-nation SLRs last December (NN, Jan. 2020, p. 15).